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# custom-property-pattern
Specify a pattern for custom properties.
<!-- prettier-ignore -->
```css
a{--foo-:1px;}
/** ↑
* The pattern of this */
```
## Options
`regex|string`
A string will be translated into a RegExp like so `new RegExp(yourString)` —so be sure to escape properly.
Given the string:
```js
"foo-.+";
```
The following patterns are considered violations:
<!-- prettier-ignore -->
```css
:root{--boo-bar:0;}
```
The following patterns are _not_ considered violations:
